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J Geriatr Cardiol. 2013 Mar;10(1):28-33. doi: 10.3969/j.issn.1671-5411.2013.01.006.

Lower levels sex hormone-binding globulin independently associated with metabolic syndrome in pre-elderly and elderly men in China.

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  • 1Department of Geriatrics, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, China.



To examine the relationship between sex hormone-binding globulin (SHBG) and the metabolic syndrome (MetS) in pre-elderly and elderly men in China.


A cross-sectional study was done among 437 men, aged 45 to 94 years old. Early morning fasting sera were assayed for total testosterone (TT), SHBG and other biochemical markers. Free testosterone (FT) was calculated.


The SHBG level of the MetS group was significantly lower than those without MetS 35.70 (25.18, 47.10) nmol/L vs. 41.90 (31.80, 55.20) nmol/L; P < 0.001). As the number of MetS components increases, SHBG and TT levels became lower. SHBG correlated with age, as did TT and most of metabolic components. Body mass index (BMI), high density lipoprotein-cholesterol (HDL-C), triglyceride (TG), and TT remained independently associated with SHBG by multivariate regression analysis. In a logistic regression taking MetS as the dependent variable, SHBG (95% confidence interval (95% CI): 0.975-0.994, P = 0.018) and homeostasis model assessment for insulin resistance (HOMA-IR) (95%CI: 1.535-2.647, P < 0.001) were included in the final model.


Lower SHBG is independently associated with MetS among pre-elderly and elderly men. SHBG may be an independent predictor of MetS, but the mechanism of how SHBG is involved in MetS requires further studied.


Males; Metabolic Syndrome; Sex hormone–binding globulin; Testosterone

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